July 30, 2023

tSAPHanaRow – Docs for ESB 7.x

tSAPHanaRow

Acts on the actual database structure or on the data (although without handling
data).

tSAPHanaRow is the specific
component for this database query. It executes the SQL query stated onto the specified
database. The row suffix means the component implements a flow in the Job design
although it does not provide output.

The SQLBuilder tool helps you write easily your SQL statements.

tSAPHanaRow Standard properties

These properties are used to configure tSAPHanaRow running in the Standard Job framework.

The Standard
tSAPHanaRow component belongs to the Databases family.

The component in this framework is available in all Talend products with Big Data
and in Talend Data Fabric.

Note: This component is a specific version of a dynamic database
connector. The properties related to database settings vary depending on your database
type selection. For more information about dynamic database connectors, see Dynamic database components.

Basic settings

Database

Select a type of database from the list and click
Apply.

Use an existing connection

Select this check box and in the Component List click the relevant connection component to
reuse the connection details you already defined.

Note: When a Job contains the parent Job and the child Job, if you
need to share an existing connection between the two levels, for example, to share the
connection created by the parent Job with the child Job, you have to:

  1. In the parent level, register the database connection
    to be shared in the Basic
    settings
    view of the connection component which creates that very database
    connection.

  2. In the child level, use a dedicated connection
    component to read that registered database connection.

For an example about how to share a database connection
across Job levels, see

Talend Studio
User Guide
.

Property type

Either Built-in or Repository
.

 

Built-in: No property data stored
centrally.

 

Repository: Select the repository
file in which the properties are stored. The fields that follow are
completed automatically using the data retrieved.

Host

Database server IP address.

Port

Listening port number of database server.

Username and Password

Database authentication data.

To enter the password, click the […] button next to the
password field, and then in the pop-up dialog box enter the password between double quotes
and click OK to save the settings.

Schema and Edit
Schema

A schema is a row description. It defines the number of fields
(columns) to be processed and passed on to the next component. When you create a Spark
Job, avoid the reserved word line when naming the
fields.

 

Built-in: The schema is created
and stored locally for this component only. For more information,
see
Talend Studio User
Guide
.

 

Repository: The schema already
exists and is stored in the Repository, hence can be reused. For
more information, see
Talend Studio User Guide
.

 

Click Edit
schema
to make changes to the schema. If the current schema is of the Repository type, three options are available:

  • View schema: choose this
    option to view the schema only.

  • Change to built-in property:
    choose this option to change the schema to Built-in for local changes.

  • Update repository connection:
    choose this option to change the schema stored in the repository and decide whether
    to propagate the changes to all the Jobs upon completion. If you just want to
    propagate the changes to the current Job, you can select No upon completion and choose this schema metadata
    again in the Repository Content
    window.

Table Name

Name of the table to be written. Note that only one table can be
written at a time.

Query Type

Either Built-in or Repository.

 

Built-in: Fill in manually the
query statement or build it graphically using SQLBuilder.

 

Repository: Select the relevant
query stored in the Repository. The Query field gets accordingly
filled in.

Guess Query

Click the Guess Query button to
generate the query which corresponds to your table schema in the
Query field.

Query

Enter your database query paying particularly attention to
properly sequence the fields in order to match the schema
definition.

Die on error

This check box is cleared by default. This means that Die on error skips the row when an error
is encountered and completes the process for rows without
errors.

Advanced settings

Additional JDBC Parameters

Specify additional connection properties in the database
connection you are creating. This option is not available if you
have selected Use an existing
connection
check box in the Basic settings.

Propagate QUERY’s recordset

Select this check box to insert the result of the query into a
column of the current flow. Select this column from the use column list.

Note:

This option allows the component to have a different schema
from that of the preceding component. Moreover, the column that
holds the QUERY’s recordset should be set to the type of
Object and this component
is usually followed by tParseRecordSet.

Commit every

Number of rows to be completed before committing batches of rows
together into the database. This option ensures transaction quality
(but not rollback) and above all better performance on
executions.

Use PreparedStatement

Select this check box if you want to query the database using a
PreparedStatement. In the Set
PreparedStatement Parameter
table, define the
parameters represented by “?” in the SQL instruction of the
Query field in the Basic Settings tab.

Parameter Index: Enter the
parameter position in the SQL instruction.

Parameter Type: Enter the parameter
type.

Parameter Value: Enter the
parameter value.

Note:

This option is very useful if you need to execute the same
query several times. Performance levels are increased.

tStatCatcher Statistics

Select this check box to collect log data at the component
level.

Global Variables

Global Variables

QUERY: the query statement being processed. This is a Flow
variable and it returns a string.

ERROR_MESSAGE: the error message generated by the
component when an error occurs. This is an After variable and it returns a string. This
variable functions only if the Die on error check box is
cleared, if the component has this check box.

A Flow variable functions during the execution of a component while an After variable
functions after the execution of the component.

To fill up a field or expression with a variable, press Ctrl +
Space
to access the variable list and choose the variable to use from it.

For further information about variables, see
Talend Studio

User Guide.

Usage

Usage rule

This component offers the flexibility of the database query and
covers all possible SQL queries.

Support

tSAPHanaRow should be used to interact with the ERP part of
SAP, including S4/HANA.

Related scenarios

No scenario is available for the Standard version of this component yet.


Document get from Talend https://help.talend.com
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